**Exhibit    4.1** **SUPPLEMENTAL    INDENTURE**     SUPPLEMENTAL INDENTURE (this “**Supplemental    Indenture**”), dated as of April 12, 2007, among    U.S.A. Recycling Holdings L.L.C., U.S.A. Recycling L.L.C. and    Freedom Recycling Holdings, LLC, each a Florida limited    liability companies (each a “**Guaranteeing    Subsidiary**”), each a subsidiary of Waste Services, Inc.    (or its permitted successor), a Delaware corporation (the    “**Company**”), the Company, the other Guarantors    (as defined in the Indenture referred to herein) party to the    Indenture on the date hereof and Wells Fargo Bank, National    Association, as trustee under the Indenture referred to below    (the “**Trustee**”). **W I T N E    S S E T H** **WHEREAS**, the Company has heretofore executed and    delivered to the Trustee an indenture (the    “**Indenture**”), dated as of April 30, 2004,    providing for the issuance of 91/2% Senior Subordinated    Notes due 2014 (the “**Notes**”); **WHEREAS**, the Indenture provides that under certain    circumstances each Guaranteeing Subsidiary shall execute and    deliver to the Trustee a supplemental indenture pursuant to    which each Guaranteeing Subsidiary shall unconditionally    guarantee all of the Company’s Obligations under the Notes    and the Indenture on the terms and conditions set forth herein    (the “**Note Guarantee**”); and **WHEREAS**, pursuant to Section 9.01 of the Indenture,    the Trustee is authorized to execute and deliver this    Supplemental Indenture; **NOW, THEREFORE**, in consideration of the foregoing and for    other good and valuable consideration, the receipt of which is    hereby acknowledged, each Guaranteeing Subsidiary and the    Trustee mutually covenant and agree for the equal and ratable    benefit of the Holders of the Notes as follows:     1. **Capitalized Terms**. Capitalized terms used    herein without definition shall have the meanings assigned to    them in the Indenture.     2. **Agreement To Guarantee**. Each Guaranteeing    Subsidiary hereby agrees to provide an unconditional Guarantee    on the terms and subject to the conditions set forth in the Note    Guarantee and in the Indenture including but not limited to    Article 11 thereof.     3. **No Recourse Against Others**. No past,    present or future director, officer, employee, incorporator,    stockholder or agent of each Guaranteeing Subsidiary, as such,    shall have any liability for any obligations of the Company or    any Guarantor (including each Guaranteeing Subsidiary) under the    Notes, any Note Guarantees, the Indenture or this Supplemental    Indenture, as applicable, or for any claim based on, in respect    of, or by reason of, such obligations or their creation. Each    Holder of the Notes by accepting a Note waives and releases all    such liability. This waiver and release are part of the    consideration for issuance of the Notes. Such waiver may not be    effective to waive liabilities under the federal securities laws    and it is the view of the SEC that such a waiver is against    public policy.     4. **NEW YORK LAW TO GOVERN**. THIS SUPPLEMENTAL    INDENTURE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH    THE LAW OF THE STATE OF NEW YORK.     5. **Counterparts**. The parties may sign any    number of copies of this Supplemental Indenture. Each signed    copy shall be an original, but all of them together represent    the same agreement.     6. **Effect of Headings**. The Section headings    herein are for convenience only and shall not affect the    construction hereof.     7. **The Trustee**. The Trustee shall not be    responsible in any manner whatsoever for or in respect of the    validity or sufficiency of this Supplemental Indenture or for or    in respect of the recitals contained herein, all of which    recitals are made solely by each Guaranteeing Subsidiary and the    Company.